Stopping mechanism for winding-machines.



c. RYQEN, STOPPING MECHANISM FOR WINDING MACHINES.

APPLICATI ON FILED NOV. 89, 1914.

Patented Apr. 24, 1917.

3 SHEETSSHEET 1.

s E E N W I c! RYDENX STOPPING MECHANISM FOR WHMDWG MACHINES.

APPLICATION FILED NOV. 19. 1914. I

"Patentefil' Apr; 2%, 19M.

g 6 E g g 4 3 SHEETSSHEET 2.

C. RYDEN STOPPING MECHANISM FOR WiNDlNG MACHINES.

APPLlCATiON FILED NOVI9.19I4.'

3 SHEETS-SHEET 3.

- Patented Apr. 24, 1917.

NVENTOR 14A fl MM ATTO NE S n I? H PA oration.

GLAES 'Q DEN, 0F CRANSTQN, BZ-IUIDE ISLAND, ASSEGNOR, BY MESNE ASSIGNI-IIENTS,

TQ UNIVERSAL WINDING- COIIIPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION MASSACHUSETTS.

s'rorrrne rancr-ienrsn FGB WINDING-MACHINES.

Specification of Letters l atent.

Patented at. rear.

Application filed November 19, 191% Serial No. 872,985.

To all whom may camera:

Be it known that l, CLAns RY EN, a citizen of the United States, residing'at Cranston, in the county of Providence and State of Rhode Island, have invented certain new i and useful Improvements in Stopping Mechuse on wlre-winding machines for winding electrical coils and the object of my inven tion is to provide means for automatically arresting the winding operation at the completion of each layer of wire so that certain steps in the process of building up the coil can be performed manually.

The manner and means for carrying out the invention are fully described in the following specification, illustrated by the accompanying drawings, in which like reference characters designate like parts. In the drawings Figure l is a side elevation of a coil-winding machine showing my improved stopping-device applied thereto;

Fig. 2 is an end elevation of the same with certain of the parts removed to more clearly illustrate the traverse-guide mechanism;

Fig. 3 is an enlarged, detail viewof a portion of the clutch-controlling and stoppingmechanism, part sectional on the line X- X of Fig. 1, looking in the direction indicated by the arrow 00;

Fig. 4 is an enlarged, sectional view taken on the line ZZ of Fig. 2, looking in the direction indicated by the arrow 2, and illustrating the relation between the stopping-device and the traversingmechanism; and Fig. 5 is a sectional plan view taken on the linef-V-V of Fig. 4:, looking in the direction indicated by the arrow 2 My invention is herein shown and described as applied to a machine of the type illustrated and described in an application for patent, Serial No. M 8221, filed Feb. 13,

1913, by Max Helm. In general, this type which the coil 1s wound. One of the guides is traversed at a relatively slow rate of speed to lay the wire in close spirals or turns arranged side by sidethe length ofthe coil; while another guide is reciprocated with a much faster traverse to wind on insulatingmaterial, such as yarn or thread, diagonally or crosswise of the wire windings. The strands of insulating-material being crossed many times over and under the wire-windings of each layer of the coil are woven in and out among the turns of the wire and thus form a mechanical binder or reinforcement for the coil to link thewire-windings together and hold them in place. While my present improvement is particularly adapted for this style of winding machine, and while I have preferred to describe and illustrate it in connection therewith, it is also to be understood that the invention is applicable to other arrangements of windingmechanism and could be employed thereon to function for the same purpose without material change, in its construction.

Referring to Figs. 1 and 2 of the drawings, A designates the main frame of the machine which is constructed with bearings for the rotating winding-spindle or coilmandrel b. The spindle b is driven through the medium of a driving-pulley B with which it is connected by suitable clutch-devices, shown at B but not here illustrated in detail. The frame A- also carries bearings for a cam-shaft 0 arranged below and parallel with the spindle b, and adapted to be driven therefrom by suitable connections such as the pulleys B B connected by a belt 6, and a train of gearing located within the case or housing A. These connections being well known and long used in the winding art are not herein shown or described in detail.

The camshaft c carries two or more cams for reciprocating the several traverse-guides of the machine, only two, C and C being employed in the present construction. The cam O is mounted fast on the shaft 0 and driven directly therefrom through any suitable arrangement of key or spline, not here shown. The cam C is, however, mounted free rotatively of the shaft 0 and is driven from independent means so that it may be rotated at a much slower rate of speed than that of the cam G. Any suitable means may be employedfor drivin the earn 0 from the winding-spindle 6 independently of the cam C, such, for instance, as that shown in the application for patent previously referred to, or through the medium of a worm-gear 0 secured to its hub. The driving connections between the worm-gear c and spindle b are not here shown in detail, but are preferably ofthe type illustrated in my pending application for patent, Serial No. $43,794:, filed June 8, 1914.

The winding-spindle 6 projects outwardly beyond the front of the frame A and is adapted to receive the windings as they build up in the form of the cylindrical coil W, illustrated by dot-and-dash lines in Figs. 1 and 2. The guides for the wire and insulating-material are arranged to be reciprocated on opposite sides of the spindle b as shown in Fig. 2, and are designated respecconsists essentially of a pivoted arm 9 adapt-- ed to slide on a horizontal rod h arranged parallel with the winding-spindle b, and

carries a downwardly-extending arm which slides in a groove on the parallelrod h. The arm 9 is connected by a suitable link to a rockable lever, not here shown, but arranged to be oscillated from the cam C, as shown and described in my U. S. Letters Patent No. 1111,5233, granted June 1, 1915. The guide proper comprises a forked extension of the arm 9 formed with two branches 9 9 having slots through which the yarn 3/ leads. The lower fork g is bent back at its end to provide a bearing face which rests against the surface on which the winding is being performed. As the Winding increases in diameter the guideG' swings upwardly on the pivot formed by the rod h. a

The wire-guide G has substantially the same arrangement of supporting rods as the thread-guide G but difiers slightly therefrom in structural details. As shown in Figs. 1 and 2, two parallel, horizontal rods 6, e are supported at one end in a bracket E fastened tothe side of the main frame A of the machine and project outwardly therefrom beyond the end of the winding-spindle b. The outer ends of the rods 6,6 are tied together by an arm or bracket E which, for the sake of clearness, is not shown in Fig. 2. Surrounding the rod 6 and adapted to slide thereon is a sleeve 0!, and the rod e also car ries a similar sliding sleeve (2. The sleeves d and d are connected by a vertical arm D formed with a central, longitudinal slot d The upper end of the arm D is fixedly secured to the sleeve d by means of the ears d", d which are bent around its circumference and clamped thereto by the screws d 5% aeaaeao is formed with two lugs or ears 0?, d", see

also Fig. 1, to which is attached the lower end of the wire-guide arm 9*. The upper end of the arm g carries a yoke 9 provided with bearings for a rotatable guide-wheel 9 formed with a circumferential groove 9 through which the wire to leads. An auxil- 'iary, grooved wheel or pulley g is mounted rotatively on an upwardly-extending arm 9 of the yoke 9 see Fig. 1, and the wire w leads partly around and under this pulley to direct it to the groove in the wheel 9 as shown more clearly in Fig. 2. As the wire is built up in layers on the coil W the guidewheel 9 is free to move back from the axis of the winding-spindle through the pivotal action of the arm g on the rod 6'.

The arm D which acts to traverse the guide G back and forth along the windingspindle is reciproca'ted from an oscillating lever F ivoted at f on an extension E of the brac et E, see Fig. 1. The lever F is oscillated through the engagement of a stud or roll f on its lower arm f with the groove 0 of the earn 0, see alsoFig. 3. The means for connecting the two arms D and F consists of a rod or link K having suitable devices lc, k at its ends for engaging the slot d of the arm D and a similar slot f in the arm F. Preferably the engagingmeans la and 7c are adjustable longitudinally of the slots d and f to provide for altering the extent of-traverse imparted by the lever F to the guide G, so that the length of the layers of winding can be regulated at will without changing the cam C or its connections. It will be noted, therefore, that the length of traverse of the guide G can be altered to provide for winding coils of difierent lengths without changing the throw of the cam G or the range of oscillation of the lever F. This latter point is of importance since the lever F acts as a means for stopping the machine at the end of each traverse of the guide as will be explained more fully hereinafter.

Referring now to F-igs.1,2 and 8, the man ual starting and stopping of the machine-is naaaoao rangement of these parts may be in accordance with the usual practice, as well known in the winding art, and therefore this portion of the mechanism will not be described in detail. Tn United States Patent No. 834,779, granted to S. W. Wardwell Oct. 30, 1906, there is shown a clutch-device particularly adapted to machines of the present type and such a form of mechanism is preferably here employed. To release the clutch from the driving pulley B the lever L is rocked in the direction indicated by the arrow M, Fig. 3,by means of a spring Z It is also .to be noted that the lever L carries a' brake-shoe -m which is engaged with the'periphery of a flanged disk M rotating with the winding-spindle after the disengagement of This arrangement is also the lever L is maintained in the position illustrated in Fig. 3, with the brake-shoe m free from the brake-disk M, through the means of suitable detent-devices now de scribed: It has been stated that the lever L is fast on the rockshaft Z, and the hand-lever L is also secured fast thereto by means of the screw Z so that these parts all move together. Referring to Fig. 3, the lever L is formed with a downwardly curved arm or extension Z carrying a projecting lug or detent-shoulder Z*. The shoulder Z is adapted to be engaged by a corresponding detentshoulder n formed on a pivotally-mounted lever N. As here shown the lever N .is pivoted on a stud n screwed into the front of the frame A of the machine and is formed with a finger-extension n By pressing down on the finger-piece n the opposite end of the lever N can be raised to disengage the detents Z and '27., thereby releasing the lever L to allow the operation of the clutch-lever L under action of its spring P. The detents Z and a are engaged by rocking the lever. L in the direction opposite to that indicated by the arrow u in Fig. 3, and are maintained in engagement through the action of gravity or by means of a spring or operating on the lever N. As shown in Fig. 3, the spring 71] is preferably made in the form of a ring encircling the hub of the lever N and having one of its ends hooked over the edge of the main frame A, while its opposite end is bent laterally and hooked into a hole in the ation of the machine automatically are arranged to act to lift the lever N to free the detents in the manner and for the purpose as next described on the end of the arm 'n is a slidable member n held in place by a screw a reaching through a slot n and screwed into the arm, see also Fig. 4. The member a has a rightangled extension a at its end adapted to be engaged by the end of a slidable rod G which forms an essential part of;.the a11tomatic stopping-device of the machifi The rod 0 slides in a bearing 0 fastened to the side of the upright arm 6 of the bracket E. The lower end of the rod 0 is beveled off at 0 and reaches through a'hole p in the wall of a tubular bearing-member P. The member P forms a part of or is attached to the arm E which extends from the bracket E. As-shown in section in Fig. 4, the member P comprises two opposite, tubular portions 39 and p bored to serve as bearings for the opposite ends of a rod R. Screwed into the ends of the bores of the bearings p and p are plugs 19 and 29 having reduced portions 39 and p against which bear the coiled springs s, s. The opposite ends of the springs s bear on the ends of the rod R. Two check-nutsp, p on the ends of the plugs p and p bear against the ends of the member P to lock the plugs from turning, and by loosening the nuts the plugs can be adjusted to vary the tension of the springs s. In this way the pressure on each end of the rod can be altered to adjust the rod R longitudinally of its bearings to bring it into its proper operative position as later described. At its right-hand end, as viewed in Fig. 4, the rod R is formed with a V- shaped notch r in which the beveled end of the rod 0 seats. A coiled spring 0 bearing against a collar 0 on the rod 0 with its opposite end held against the bearing 0 acts to force the rod downwardly to maintain its end seated in the. notch 1' 0f the rod R. Referring to Figs. 4 and 5, the rod R is cut away-at r midway of its ends to form two shoulders r and T The lower end of the arm f of the lever F is arranged to play back and forth along the reduced portion 1- of the rod R with its sides adapted to strike against the shoulders r and r at each extreme of its oscillation to slide the rod longitudinally against the action of its springs s, s. The operation of the complete coil the operator first adjusts the wire-guide G to one extreme of its traverse along the spindle b. The wire to is now drawn down from its source of supply, usually placed above the machine, but not here shown, led

over the guide-wheels g and g and its end 1s then fastened to the spindle b or to the arbor on which the coil is tobe wound.

The thread or yarn 3 is drawn up from its 5 supply spool or cop, not here shqwn, passed through the guide notches at the ends of the arms 9 g on the guide" G and its end also secured to the spindle b.- To start the machine the operator rocks the handle L in the direction indicated by the arrowt, Fig. 2, and the'clutch-devices are thereby released -to' connect the driving-pulley B with the spindle b as previously explained. The rocking of the lever L causes the detents n and Z to be engaged to maintain the driving-connections of the machine operative and the two cams C and C will be driven from the spindle I) through the connections previously explained. The rotation of the cam C causes the lever F to be rocked to reciprocate the guide G with a relatively slow movement, while the cam C imparts a very much faster traverse to the threadguide Gr through the medium of connections similar to those of the guide G. The guide G as it moves slowly from one extreme of traverse to the other, during the rotation of the winding-spindle, lays the wire to in closely-adjacent helices to form one layer of the coil W. Meanwhile, the thread-guide .G is being reciprocated with a much faster traverse to cross the yarn 3 back and forth, over and under the wire coils in openly-spaced. helices which form the binding and reinforcing medium previously referred to. With this system ofwinding it is the usual practice to employ an insulated wire in the manufacture of the coils, and in most cases it is not required to 40 introduce an insulating-medium between the different layers of the coil. As a matter of fact, the yarn-windings serve in a measure for insulation between the wire layers and although generally the layers will not be entirely covered with yarn at their completion, still enough yarn will have" been wound on to cooperate with the primary insulation of the wire so that the insulation of the wire throughout the coil is augmented and made more efficient. This method of inserting yarn windings between the layers of wire in the coil is fully described in United States Letters Patent No. 1,080,830, granted December '9, 1913, to'Max Helm.

In some instances, however, where the coils are intended for high-tension current, it has been found of advantage to'introduce an added insulating medium between the layers of the coil,to guard against shortcircuiting or leakage. The simplest and most economical method of applying this added insulation isto insert strips of paper or other suitable material between the layers of the coil.- This step in the process of 65 manufacturing the coil is usually performed els back and forth between the shoulders r I and r of the rod R. The distance between these shoulders is slightly less than the distance between the extremes of movement of the sides of the arm f and hence the shoulders are adapted to be engaged by the arm to move the rod R in one direction or the other according to the direction of movement of the lever F. That is tosay, each time the lever F approaches either extreme of its throw, in bringing the wire-guide G to the end of its traverse, the arm f will engage the appropriate shoulder 1' or r on the rod R to slide the latter longitudinally in its bearings against the action of the springs s. This longitudinal movement of the rod R, in either direction, will cause the end of the vertical rod 0 to ride up on the beveled sides of the notch 7" against the action-of its spring 0 As the rod 0 is projectedupwardly its upper end will be brought into contact with the member a on the lever N to raise the latter and release the detents n and Z. This action frees the hand-lever L and causes the operation of the clutch-disengaging means and brakingmechanism as previously described. In this manner the operation of the machine is antomatically arrested at the instant the wireguide completes each layer of winding. The adjustment of the member n on the lever N provides for a more accurate setting of the stopping-device to act at the proper instant and by adjusting the tension of the springs s, as before described, the rod It can also be set in proper relation to the throw of the arm f After the machine has been stopped at the completion of the layer of wire-windings, the operator fastens the strip of paper or other insulation around the outside of the coil and then repeats the operation of starting the winding again. In starting up'the machine the hand is 'held on the lever L an instant until the arm f has moved back from the shoulder on the rod R and in the meantime the rod will be returned to its normal position under action of the springs .s so that the rod 0 will again seat itself in the bottom of the notch 1'- with its opposite end removed from contact with the arm this method of building up the coil the yarn-windings do not cover the Whole length of each layer of wire-windings, but, on the contrary, a portion of the layer is left with relatively few turns of yarn showing on its surface. ,Usually, however, twothirds or'three-fourths of the length of the Wire layer is covered and protected by the yarn-windings and hence only a relatively narrow strip of paper insulation is required. lhat is to say, Whereas with the usual system of producing insulated coils it is necessary to insert sheets of the insulating material of a Width equal to the length of the coil, in the present instance relatively narrow ribbons take the place of these Wide sheets and it has been found that they can be applied With much greater facility and convenience.

Various modifications might be made in the form and construction of the-parts of my new device Without departing from the spirit or scope of the invention; therefore, Without limiting myself to the exact embodiment vshown and described, What claim is i. in a winding machine, the combinanally of the spindle, means for reciprocating the guides at different speeds, and means for automatically arresting the opot the spindle and guides When one 17 'ter reaches its extreme of traverse her direction.

n a Winding machine, the combination with a rotating Windingspindle, of a traverse-guide adapted to be reciprocated with respect to the spindle, an oscillating arm for reciprocating the guide, stoppingmechanism for arresting the operation of the spindle and guide, a sliding-member engaged by and operated from the movement of the guidereciprocating arm at each extreme of its throw, and means actuated by the sliding-member to operate the stopping-mechanism ,WllGIl the guide reaches the end or" its traverse.

a Winding machine, the combination With a rotating Winding-spindle, of means to rotate the spindle, a plurality of traverse-guides adapted to be traversed longitudinally of the spindle, means for reciprocating the guides at different rates of speed, stopping-mechanism for arresting the operation of the spindle and guides, and means adapted to actuate the stoppingmechanism at certain intervals of the Winding, said means actuated from the reciprocating-means of one of the guides but independently of the reciprocation of the other guide. I

5. In acoil-Winding machine, the combination With a Winding-spindle, of means to rotate said spindle, a Wire-guide adapted to be traversed longitudinally of the spindle, a guide for insulating-material also adapted to be traversed along the spindle, means for reciprocating the guides at different rates of speed With the insulatingmaterial-guide having several traverses to one traverse of the Wire-guide, and means to-arrest the operation of the Windingspindle and both guides When the Wireguide reaches either end of its traverse Without respect to the position of the other guide. a

6. In a coil-Winding machine, the combination with a winding-spindle, of means to rotate said spindle, a Wire-guide adapted to be traversed longitudinally of the spindle, a guide for insulating-material also adapted to be traversed along the spindle, means for reciprocating said guides With the insulating-material-guide having several traverses to one traverse of the'wireguide, stopping-mechanism adapted to arrest the operation of the Winding-spindle 10g and both guides, and means uninfiuenced by the insulating-material-guide but controlled by the position of the Wire-guide to actuate the stopping-mechanism at each end of the wire traverse.

7. in a coil-winding machine, the comhination with a Winding-spindle, of a Wireguide adapted to reciprocated longitudinally of the spindle, a guide for insulatingmaterial also adapted to he reciprocated along the spindle, means for rotating the spindle, separate means for reciprocating the different guides, stopping-mechanism for arresting the operation of the spindle and guide, a member adapted to be moved 115 from one of the guide-reciprocating-means at each end of the traverse of the Wire-guide, and means operated from said member to actuate the stopping-mechanism When the Wire-guide reaches either extreme of trav- 1.20

erse.

8. In a Winding machine, the combination with a rotating Winding-spindle, of a re ciprocating traverse-guide, means to rotate the spindle, an oscillating rocker-arm for'125 reciprocating the guide, stopping-mech.a nism for arresting the operation of the spindle and guide, detent-means for maintaining said stopping-mechanism normally inoperative, and means engaged by and ac- 130 tuated from the rocker-arm to release the reciprocating said guide, stopping-mechanism to arrestthe operation of the spindle and guide, detent-means for maintaining said stopping-mechanism normally inoperative, a slidable member engaged by and op- ,erated from the rocker-arm .at the end of each traverse of the guide, and means engaging the sliding member and moved therefrom to release the detent-means to cause action of the stopping-mechanism.

10. In a winding machine, the combination with a rotating winding-spindle, of means to rotate said spindle, a reciprocating traverse-guide, an oscillating arm for reciprocating said guide, a slidable rod having abutments adapted to be engaged by said arm at its extremes of throw, a second rod engaging the first rod to be moved thereby through the movement of the first rod in either direction, and means .actuated from the movement of the second rod to arrest the operation of the machine.

11. In a winding machine, the combina tion with a rotating winding-spindle, of a reciprocating traverse-guide, means to rotate the spindle and reciprocate the guide, stopping-mechanism to arrest the operation of the spindle and guide, a sliding member adapted to be moved in either direction by theguide-reciprocating-means, tensionmeans acting on the member to maintain it in a mean position relative to the reciprocating-means, and means engaging the sliding member to be operated from its move ment in either direction to actuate the stop ping-mechanism when said member is moved out of its mean position.

12. In a Winding machine, the combination with 'a rotating winding-spindle and reciprocating traverse-guide, of means to rotate the spindle and reciprocate the guide, stopping-mechanism to arrest the operation of the spindle and guide, a member adapted to be moved in opposite directions from the guide-reciprocating-means, a second member engaging said movable member to be operated thereby to cause action of the stopping-mechanism, and'resilient means acting on said movable member to normally main tain it in a mean position in relation to the reciprocating-means while allowing it to be moved thereby in either direction.

13. In'a winding machine, the combination with a winding-spindle and traversenaaacao guide, of means to rotate the spindle and reciprocate the guide, stopping-mechanism for arresting the operation of the spindle and guide, a rod slidable in either direction and adapted to be operated from the guide-reciprocating-means, a member engaging said rod and operated from its sliding movement in either direction to cause action of the stopping-mechanism, springs engaging the ends of the rod to normally maintain it in a mean position in relation to "the reciprocating-means, and means to adjust the tension of the springs.

14. In a winding machine, the combination with a winding-spindle and traverseof the reciprocating-means to cause the operation of the stopping-mechanism.

15. In a winding machine, the combination with a winding-spindle and'traverseguide, of means to rotate the spindle and reciprocate the guide, stopping-mechanism to arrest the operation of the spindle and guide, detent-means for maintaining said 7 stoppmg-mechanism normally inoperative, a slidable rod adapted to be moved from the guide-reciprocating-means at either end of the traverse of the guide, said rod formed with beveled shoulders, and a second rod engaging the shoulders on the first rod to be moved thereby to release the detentmeans.

16.. In a winding machine, the combination with a rotating winding-spindle and a reciprocating traverse-guide, of means to rotate the spindle, an oscillating rocker-arm for reciprocating the guide,- stoppingmechanism for the spindle and guide, a detent to prevent the operation of the stopping-mechanism, and a member mounted parallel to the spindle and operatively associated with the detent, said member adapted to be engaged by and moved from the rocker-arm at the end of each traverse of the guide to trip the detent and release the stopping-mechanism.

In testimony whereof I afix my signature in presence of two witnesses. 

